NOW GlycoCarn (Glycine Propionyl-L-Carnitine) GPLC is a patented, highly bioavailable form of Carnitine. Carnitine is an amino acid that plays a crucial role in muscle function. GlycoCarn, particularly when combined with exercise, has been shown to promote healthy nitric oxide production. Nitric oxide is notable for its vasodilating effects, which help to enhance blood flow to muscles and the heart. Nitric oxide also facilitates the production of energy at the cellular level and aids in the removal of lactic acid and other metabolic waste products from muscle tissue.*